Resin impregnation measurement system

Abstract

A resin impregnation measurement system includes first electrodes, second electrodes, a measurement controller, and an impregnation ratio deriving unit. The first electrodes extend in parallel. The second electrodes are disposed so as to oppose to the first electrodes across a container and extend in a direction intersecting the first electrodes. The container is configured to be filled with a resin. The measurement controller is configured to sequentially switch between the first electrodes and the second electrodes and measure electrostatic capacities of measurement regions where the first electrodes are opposite to the second electrodes. The impregnation ratio deriving unit is configured to derive an impregnation ratio of the resin to the fiber base material in the container on a basis of a distribution of the electrostatic capacities of the measurement regions.

The invention claimed is: 
     
       1. A resin impregnation measurement system comprising:
 a plurality of first electrodes that extend in parallel; 
 a plurality of second electrodes disposed so as to oppose to the first electrodes across a container in which a fiber base material is to be placed and extending in a direction intersecting the first electrodes, the container being configured to be filled with a resin, the container having an inlet and an outlet and being configured to flow the resin in a flow direction from the inlet toward the outlet; 
 a measurement controller configured to sequentially switch between the plurality of first electrodes and the plurality of second electrodes and measure electrostatic capacities of a plurality of measurement regions where the first electrodes are opposite to and overlaps the second electrodes at portions where the first electrodes and the second electrodes intersect, each of the measurement regions having a rectangle shape that is defined by a width of one of the first electrodes and a width of one of the second electrodes and that has a longitudinal direction being consistent with the flow direction; and 
 an impregnation ratio deriving unit configured to derive an impregnation ratio of the resin to the fiber base material in the container on a basis of a distribution of the electrostatic capacities of the plurality of measurement regions. 
 
     
     
       2. The resin impregnation measurement system according to  claim 1 , wherein the measurement controller changes a mode of switching between the plurality of first electrodes and the plurality of second electrodes according to the impregnation ratio of the resin. 
     
     
       3. The resin impregnation measurement system according to  claim 1 , wherein the measurement controller changes a mode of switching between the plurality of first electrodes and the plurality of second electrodes according to the impregnation ratio of the resin. 
     
     
       4. The resin impregnation measurement system according to  claim 1 , the resin impregnation measurement system further comprising:
 a baking distribution deriving unit configured to derive a baking distribution of the resin in the container on a basis of a transition of the electrostatic capacities of the plurality of measurement regions. 
 
     
     
       5. The resin impregnation measurement system according to  claim 1 , wherein a region other than the measurement regions in the first electrodes or the second electrodes has a smaller cross section in a longitudinal direction of the first electrodes or the second electrodes than the measurement regions have. 
     
     
       6. The resin impregnation measurement system according to  claim 2 , wherein a region other than the measurement regions in the first electrodes or the second electrodes has a smaller cross section in a longitudinal direction of the first electrodes or the second electrodes than the measurement regions have. 
     
     
       7. The resin impregnation measurement system according to  claim 3 , wherein a region other than the measurement regions in the first electrodes or the second electrodes has a smaller cross section in a longitudinal direction of the first electrodes or the second electrodes than the measurement regions have. 
     
     
       8. The resin impregnation measurement system according to  claim 4 , wherein a region other than the measurement regions in the first electrodes or the second electrodes has a smaller cross section in a longitudinal direction of the first electrodes or the second electrodes than the measurement regions have. 
     
     
       9. A resin impregnation measurement system comprising:
 a plurality of first electrodes that extend in parallel; 
 a plurality of second electrodes disposed so as to oppose to the first electrodes across a container in which a fiber base material is to be placed and extending in a direction intersecting the first electrodes, the container being configured to be filled with a resin the container having an inlet and an outlet and being configured to flow the resin in a flow direction from the inlet toward the outlet; and 
 circuitry configured to
 sequentially switch between the plurality of first electrodes and the plurality of second electrodes and measure electrostatic capacities of a plurality of measurement regions where the first electrodes are opposite to and overlaps the second electrodes at portions where the first electrodes and the second electrodes intersect, each of the measurement regions having a rectangle shape that is defined by a width of one of the first electrodes and a width of one of the second electrodes and that has a longitudinal direction being consistent with the flow direction, and 
 configured to derive an impregnation ratio of the resin to the fiber base material in the container on a basis of a distribution of the electrostatic capacities of the plurality of measurement regions. 
 
 
     
     
       10. The resin impregnation measurement system according to  claim 9 , wherein the circuitry is further configured to
 derive a baking distribution of the resin in the container on a basis of a transition of the electrostatic capacities of the plurality of measurement regions. 
 
     
     
       11. The resin impregnation measurement system according to  claim 1 ,
 wherein the measurement regions comprise
 a first measurement region, 
 a second measurement region adjacent to the first measurement region and located downstream of the first measurement region in the flow direction, and 
 a third measurement region adjacent to the second measurement region and located downstream of the second measurement region in the flow direction, 
 
 wherein the measurement controller is configured to
 measure a first electrostatic capacity of the first measurement region, 
 begin, after the first electrostatic capacity become a predetermined value, a second electrostatic capacity of only the second measurement region the first measurement region, a measurement of the second measurement region and the third measurement region, and 
 begin, after the second electrostatic capacity become the predetermined value, a measurement of a third electrostatic capacity of only the third measurement region the first measurement region, the second measurement region and the third measurement region. 
 
 
     
     
       12. The resin impregnation measurement system according to  claim 9 ,
 wherein the measurement regions comprise
 a first measurement region, 
 a second measurement region adjacent to the first measurement region and located downstream of the first measurement region in the flow direction, and 
 a third measurement region adjacent to the second measurement region and located downstream of the second measurement region in the flow direction, 
 
 wherein the circuitry is configured to
 measure a first electrostatic capacity of the first measurement region, 
 begin, after the first electrostatic capacity become a predetermined value, a second electrostatic capacity of only the second measurement region the first measurement region, a measurement of the second measurement region and the third measurement region, and 
 begin, after the second electrostatic capacity become the predetermined value, a measurement of a third electrostatic capacity of only the third measurement region the first measurement region, the second measurement region and the third measurement region.